Questions tagged [arduino-pro-micro]
The Pro Micro is an Arduino-compatible microcontroller. It is similar to the Pro Mini except with an ATmega32U4 on board. The USB transceiver inside the 32U4 allows us to add USB connectivity on-board and do away with bulky external USB interface.
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Communication vs Power Arduino
If I want to use an external power source to power up my Arduino through the raw pin and connect its ground to the ground of the Arduino (Arduino Pro Micro), but need to also have USB connected to my ...
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Incorrect HEX code from DMM IR RS232
I have an Amprobe 38XR-A (sometimes seen as a meterman), these DMM's have a IR RS232 port on top and transmit a HEX code. Using the official cable I get a hex value of:
08000400500A0
I am attempting ...
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Sparkfun Pro Micro (5v) as ISP error
I'm trying to use Sparkfun Pro Micro (5v 16MHz) as ISP to program Attiny chips (OS:Windows10Pro). I followed instructions. Installed proper driver and added Sparkfun boards to ArduinoIDE:
Using ...
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Pro Micro Double Reset help; Not able to get upload done in 8 seconds
I have timed the double reset as best as possible multiple times but the upload doesn't happen before the board leaves bootloader mode.
this is all I'm given as an error which doesn't appear until ...
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Unable to flash arduino pro micro from Terminal
I am trying to upload an hex file to my arduino pro micro using Avrdude . The thing is that I cannot upload any code using the Avrdude terminal commands , but when I use arduino IDE to upload any code ...
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Is it possible to remove the bootloader while flashing using the bootloader?
The question is meant as in, can I lock myself out of the Arduino using the bootloader, if I flash a hex file that doesn't contain the bootloader?
Or does the bootloader automatically add the flashed ...
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I can't get my Micro Pro to bootloader mode anymore
It's important to start by saying that this micro was working perfectly, and the keyboard I built with it was great. Then this happened:
While using the QMK Toolbox I tried to upload an oversized .hex ...
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Disable Keyboard.h status LED
As soon as I include keyboard.h my pro micros LED starts flashing (as far as I know this indicates a serial connection is stablished or so.)
But it's really annoying having a flashing led on my desk ...
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Peculiar behaviour of arduino pro micro
I am working with an arduino pro micro and I am facing a peculiar problem. The project I am working with includes arduino MKR NB 1500 as well. I am transferring data from MKR NB 1500 to arduino pro ...
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What is the timing between reset and avrdude/spi communication? (re: avrdude problem)
I'm trying to troubleshoot an issue with avrdude involving a Raspberry Pi and a transistor to control the reset pin on an Arduino Pro Micro (atmega32u4).
Where can I find information on the reset/...
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Sharing clock pin on Pro Micro
I am trying to get both a SPI LED matrix display and an NRF24L01 to both work on the same Arduino Pro Micro. I know they both want to use the clock pin but how do I get them to share? Can I use the CS ...
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Arduino Pro micro Serial communication problem with Node MCU
I recently bought an ATmega32U4 based Arduino Pro micro. I am using the Keyboard library and interfacing with my PC via USB.
I am trying to create a serial communication between the Arduino Pro micro ...
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Upload s sketch to a 5v Pro-Micro board as 3.3V by mistake
I have 2 types of Pro-Micro(as shown here), both 5v, micro-usb, which worked as expected, until, accidentally were flashed as 3.3v using the Arduino IDE.
At first I thought that the fact it stoped ...
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Can I control LED brightness with potentiometer without any code, as well as reading the potentiometer value?
I am just getting back into electronics and have started to play around with making my own button box.
I am trying to control an LED's brightness using a potentiometer, while also reading the ...
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How to fix HC05 burning even after while using voltage regulator?
I'm using two circuits for my wireless head mouse project, one of them is a transmitter circuit with Arduino Pro Micro, HC05 Bluetooth module, Elechouse Voice Recognition Module V3.1, GY-521 module ...
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Gamepad connection using Pro Micro(ATMEGA32u4 + HC-05
I have been working on making a HID compatible Gamepad using Pro Micro and HC-05 module. I have successfully configured the class of HC-05 module to appear as an Input device(A gamepad) on my PC ...
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Arduino Joystick Library not Recognized by Games (Steam)
I have an Arduino Pro Micro running code that uses the Arduino joystick library to act as a gamepad. I'm just doing testing right now so there's a single button wired up and configured in the code.
...
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What does a tilde (~) mean as annotation for a data pin?
When I examine the datasheet for the Arduino Micro (couldn't find the Pro Micro on their site, btw) then I see some data pins annotated with a ~ character, and some are not.
For instance, D9 has a ~ ...
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Establishing wireless comm. between PC and arduino pro micro to exchange speech and gyro data
I have a client project to make a wireless head-mounted mouse. What wireless module should I use so that I can exchange data between my laptop and the arduino pro micro through the USB port like a ...
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Measure lipo voltage while powering arduino
I have a arduino pro micro 5V that I want to power with a 3.7V lipo. I also have a charging module to charge the lipo.
(https://www.banggood.com/nl/TP4056-1A-Lipo-Battery-Charging-Board-Charger-...
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ATMEGA32u4 Arduino Bootloader Issues
I've been struggling with this issue for a few days on and off now. I made a custom PCB (schematic) for a smaller Arduino Pro Micro and it works - mostly. The only issue I had was that the pins on ...
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Sparkfun Pro-Micro stuck on uploading
I have read multiple posts on how to reset the sparkfun pro-micro when it gets stuck during upload, and this seems to work to get it back to a state where I can upload new code again - However, I am ...
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How to fetch the com port or any id I can use to upload specific program to a specific arduino? e.g. "a.ino" to arduino micro
My project is a head mouse for which I am using two arduino boards . I want to upload a specific program to a specific arduino. How can I do it? And if I need to use a pid or com port id about which ...
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What can I do to increase the amount of LEDs I can power with a pro micro?
I am new to arduino and have a sparkfun pro micro that I'm using to power a one meter (60 pixels) APA 102 strip. I currently power it via USB and have a program that sends lighting instructions to it. ...
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3.3v pin on a 5v Pro Micro?
I have a arduino pro micro that runs on 5v.
I also have a Max4466 that needs 3.3v, however the pro micro doesn't seem to have a 3.3v VCC.
Is there any way to attach the max4466 to the Board?
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